RE: off the shelf ammo
If you are hunting for deer, I think I would go with 130 gr. or 150 gr. Hornady Custom Ammunition. I have always obtained good groups from Hornady bullets, and they are tough enough for deer.
If you are hunting for elk sized game and up go with a 150 gr. Barnes X, Nosler Partition, Trophy Bonded Bear Claw, Swift A-Frame, of Win. Fail Safe.
Try and get a couple of boxes of the same lot. Good luck on your hunt.